Page 13 - Tiling Guide September 2023

by viewing the room from the doorway).
3.. Lay the tiles down this line and then work towards the wall you think is best, leaving a joint between the tiles of at least 3mm. Tile spacers can be used to achieve a uniform size joint, however they should be removed before grouting. Avoid small cuts, as they can be difficult and do not look professional.
8 SUBSTRATE PREPARATION
Correct substrate preparation is essential for • successful tiling installation.
Always ensure that substrates are:
• Clean and dry, free from debris.
• Dimensionally stable and able to support the tiling for the intended duty and traffic. The use of sheets or boards that are subject to movement from changes in moisture content should be avoided. Plywood or other wood-based sheets or boards should not be used for direct wall tiling.
Suitably level for the fixing method intended. NOTE: ready-mixed adhesives usually have a maximum bed depth of 3mm, and are not suitable for floors or for certain wall applications.
• Priming may be required to improve the bond to some surfaces. Always consult manufacturer's datasheets.
• In wet areas such as showers and wet rooms, a waterproofing system may be required as part of the substrate preparation.
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